Text typed into Messages or Reminders suddenly jumps around erratically
I have a MacBook Pro 16 inch, late 202, running Monterey v. 12.3. If I type a short message there is no problem, but if it is more than a few lines the text goes berserk. It rearranges words, turns letters into apostrophes, etc. It just happened again -- I copied it and fixed it in email, then cut and copied it back into the message. Then I tried to edit a Reminder entry and it did the same thing.
MacBook Pro 16″, macOS 12.3